Overhead gasoline-engine oiler



Dec. 23, 1930.

A. R. SOLOMON OVERHEAD GASOLINE ENGINE OILER Filed March 20, 1929 WW @ZWPatented Dec.'23, 1930 1,786,269

UNITED STATES PATENT orrlcr.

AARON R. SOLOMON, OF ST. LOUIS, MISSOURI, .ASSIGNOR T MONERN AUTO'REPAIRAND RECONSTRUCTIN'G COMPANY, OF ST. LOUIS, MISSOURI, A. CORPORATION OFMISSOURI v 1 OVERHEAD GASOLINE-ENGINE OILER Application filed March 20:11-329. Serial No. 348,372.

The' object of my device is to produce an the type used in automobiles,although it may .be equally well used with an gasoline engine.

A- further object is to In ricate the cylinders, pistons, piston ringsand valves from the top. 1

A still further object is to lubricate these parts from the positionindicated with a special high grade lubricating oil, and to have theoperation automatic and to produce the oil movement by means of thepresent pressure and vacuum lines on the motor.

A still further object is to devise a special container for special oilfor the reception and storage of said oil with fluid communicationbetweensaid oil storage reservoir and the intake manifold of thegasoline engine and further fluid communication between said oilreservoir and the oil pressure line of the motor. By meansof my devicethe special oil from said oil storage reservoir, by means of the vacuumin the intake manifold of the motor, is drawn in small predeterminedquantities from the oil reservoir and mixed with the gasoline vapor fromthe carburetor and drawn'to the parts to be lubricated. In addition theoil is forced from the oil storage reservoir by a positive pressure fromthe oil pressure line through the vacuum line previously describedmaking the action positive.

My device may be easily attached to the frame of the presentconventional gasoline engine at any conventional point and connected byconventional fittings to pipes that lead to the intake manifold and tothe oil pressure line.

My device is made of few and simple parts that lend themselves readilyto multiple production, and that may be easily made, repaired and'attached to the gasoline engine.

With these and other objects in view my invention has relationto'certain novel features of construction and arrangement of parts aswill be hereinafter more fully de scribed, pointed out in the claims andillustrated in the drawings in which Fig. 1 is a fragmental elevation ofa gasoline engine showing the intake manifold, the oil pressure line andmy device attached to the frame'of the gasoline engine and operativelyconnected with the intake manifold and oil pressure line.

Fig. 2 is a plan view of the oil storage reservoir together with the oilpump, valves; etc., and pipe connections for connection with the intakemanifold and oil pressure line.

3 is a front elevation of Fig. 2.

Fig. 1 is a longitudinal, sectional elevation on the line 44 of Fig. 2.

Fig. 5 is an enlarged plan view of a valve used in my device and shownin its operative position in Fig. 4.

Fig. 6 is a front elevation of Fig. 5 partly in section.

Fig. 6a is an enlarged fragmental sectional elevation of the elements atthe bottom of the cylinder 17 in Fig. 1.

Numeral 7 designates the gasoline engine having the intake manifold 8and the oil pressure line 9. Numeral 10 designates the oil reservoir,which is attached to the gasoline engine .7 by means of screws passingthrough holes in the flange 11 and into the frame of the gasoline engine7. The oil reservoir 10 embodies the jar 12and the cap 18. The cap 13 isin threaded engagement with the open end of the jar 12. The jar 12 actsas the container for the special lubricating oil and in operation isfilled to the line 14.1 1 of Fig. 4. For conveniently filling the jar 12with oil the tapped hole 15 is formed in the cap 13. Numeral 16desigates a threaded plug in threaded engagement in the tapped hole 15.Numeral 17 designates a cylinder externally threaded at one end andsecured in the cap 13 centrally by passing through a hole in said cap,so that the threaded portion of the cylinder 17 extends beyond the topof the cap 13. The end of the cylinder 17 opposite the threaded end iscovered by the annular cap 18. Centrally positioned in the annular cap18 is the hole 19. Numeral 20 designates a projection formed on the cap13 and having the hole 21 formed therein. Numeral 22 designates a holeformed in the projection 20 at right angles to the hole 21 and in fluidcommunication therewith. Numeral 23 designates a pipe having one endprojecting in the hole threaded engagement in the hole 21 formed in theprojection 20. From the free end of the oil feed 24 extends the pipe.25, which connects to the intake manifold 8. The 011 .feed 24 has theconventional regulating stem 26. It will be seen that by the structurethus far described. that fluid communication is established between thebottom of the cylinder 17 through the oil feed 24 to the intake manifold8 and that the amount of fluid passing through its system may beregulated in the conventional manner, by means of the regulating stem26.Numeral 27 designates a cylindrical disk of lesser diameter than that ofthe cylinder 17 and positioned in the cylinder 17 in the annular cap 18and lying normally over the hole 19. Numeral 28 designates a cylindricalcap having the flange 29 and the hole 30 formed centrally in its top andthe holes 31 formed in its lateral face. The outside diameter of thecylindrical cap 28, that is theoutside diameter of the flange 29 is suchto permit the cylindrical cap 28 being positioned in the cylinder 17 insliding engagement. The inside diameter of the cylindrical cap 28 isslightl greater than that of the cylindrical disk 2 so that thecylindrical disk 27 when positioned together with the cylindrical cap28, as shown in Fig. 4 on the bottom of the cylinder 17 will be insliding engagement on the inside of the cylindrical cap 28. As shown inFig. 4 the movement of the cylindrical disk 27 is limited by the heightof the cylindrical cap 28. Numeral 32 designates a coiled spring of adiameter slightly less than that of the cylin der 17 and positioned inthe cylinder 17, as shown in Fig. 4. Numeral 33 designates a cylindricaldisk of a diameter slightly less than the inside diameter of thecylinder 17 and positioned above the coiled spring 32 in Fig. 4, so thatthe cylindrical disk 33 is in sliding engagement in the cylinder 17.Numeral 34 designates a cylindrical disk similar to cylindrical disk 33.Numeral 35 designates a bolt having the cylindrical disk 33 securedthereto and held in position thereon by means of the nuts 36. Numerals37 designate resilient washers, one positioned above and the other belowthe cylindrical disk 34. The washers and disk are positioned on the bolt35, as shown in Fig. 4. Numeral 38 designates a nut in threadedengagement on the bolt 35 below the lower resilient washer 37. By meansof this nut 38 and the head of the bolt 35, the resilient washers 37 andthe cylindrical disk are held in positive fixed relationship relativeeach other and the bolt 35. Numeral 39 designates a cap in threadedengagement on the upper end of the cylinder 17. The washer 40 ispositioned on the inside of the cap 39. Numeral 41 designates a pipethreaded in a central hole in the cap 39. The pipe 41 is secured at itsopen end to the oil pressure line 9.

It must be understood that the oil from the oil pressure line neverreaches the oil in the jar 12. The oil pressure line is only used tosecure the pressure to actuate the movement of the resilient washers 37in the cylinder 17.

The operation of my device is as follows:

The only time there is a pressure in the oil pressure line is when thegasoline engine is operating. As is shown in Fig. 4 the oil is fed indrops from the oil feed 24 to the pipe- 25. The intention is to feed theoil only in such amounts that it will become intermingled with thegasoline vapor from the carburetor, and so that the oil is not depositedon the cylinders, pistons, piston rings and valves in too greatquantities. It is likewise seen that the oil from the jar 12 can onlyenter the cylinder 17 through the hole 19 and that such oil can onlypass through the oil feed 24, through the pipe 23. The coiled spring 32is used to return the cylindrical disk 33, cylindrical disk 34 andresilient washers 37 together with the bolt 35 to the position shown inFig. 4. The position of these elements in Fig. 4 is that assumed by themwhen the cylinder 17 is filled with oil through the hole 19, as to besubsequently described.

The vacuum in' the intake manifold 8 creates a vacuum in the cylinder17, which lifts the cylindrical disk 27 to the top of the annular cap 28and draws the oil from the ar 12 through the hole 19, through the holes31 into the pipe 23 and the oil feed 24, and from there through the pipe25 to the intake manifold 8. The remainder of the operation is necessaryto make the flow of oil through the pipe 23 positive by not only havingit drawn through the pipe 23 by the vacuum from the intake manifold, butto have it forced by a positive pressure through the pipe 23. Thispressure is produced by the oil pressure line 9, which forces the oilfrom the oil pressure line into the cylinder 17 above the resilientwashers 37 thereby pushing the resilient Washers 37 and theiraccompanying elements downwardly compressing the coiled spring 82 andpressing the oil in the cylinder 17 below the cylindrical disk 33against the cylindri cal cap 28. This pressure of the oil in thecylinder 17 presses the cylindrical disk 27 against the bottom of theannular cap 18, closing the hole 19, preventing the oil that is in thecylinder 17 from passing into the jar 12 on this downward stroke throughthe hole 19. This pressure on the oil in the cylinder 17 then forces theoil from the cylinder 17 through the pipe 23 and through the same systemof circulation that is produced by the vacuum in the intake manifold.The oil pressure in the cylinder 17 is greater than the ull of thevacuum in the pipe 23 and in the ottom of the cylinder 17, otherwise thevacuum would hold the cylindrical disk 27 above and away from the hole19 and permit fluid communication between the cylinder 17 and the jar 12and the downward pressure in the stroke previously indicated wouldsimply force the oil from the cylinder 17 into the jar 12 through thehole 19, rather than upwardly through the pipe 23. The cylinder 17 .ismade of such size that it will hold a quantity of oil that is suflicientfor any normal continuous operation of the gasoline engine. When thegasoline engine stops running and the pressure in the oil pressure line9 ceases the coiled spring 32 will return the resilient washers 37 tothe position shown in Fi 4, and also draw in a suflicient amount 0% oilinto the cylinder 17 to fill it through the holes 31 and the hole 19.

What I claim and mean to secure by Let-- ters Patent is:

1. In a device of the character described an oil reservoir, having meansof fluid communication therefrom to the intake manifold of a gasolineengine, a cylinder secured in said oil reservoir, a piston positioned insaid cylinder, one end of said cylinder behind said piston being influid communication with the oil pressure line of a gasoline engine, avalve positioned at the bottom of said cylinder, which closes the bottomof said cylinder from fluid communication with said oil reservoir in thedownward stroke of said piston and forces the oil from said'cylinder toa pipe, which is in fluid communication with the intake manifold of agasoline engine.

2. In a device of the character described, an oil reservoir, means offluid communication between said oil reservoir and the intake manifoldof a gasoline engine, a cylinder positioned in said oil reservoir, avalve positioned in said cylnder, so that the valve will be 0 en fromthe action of the vacuum-in the inta e manifold and draw the oil fromthe oil reservoir, through said valve into said intake manifold, saidoil reservoir having a means for filling said cylinder.

In testimony whereof I aflix my signature.

AARON R. SOLOMON.

